1. Polar bears: Polar bears rely heavily on sea ice for hunting, traveling, and breeding. They use the sea ice as a platform to hunt seals, their primary prey. The loss of sea ice due to climate change has a significant impact on polar bear populations.
2. Sea lions and fur seals: Sea lions and fur seals are marine mammals that spend a considerable amount of time on land, but they depend on the sea for food. They are skilled swimmers and divers, and they hunt fish, squid, and other marine animals.
3. Marine iguanas: Marine iguanas are found on the Galapagos Islands. They are unique among lizards for their ability to swim in the ocean and feed on marine algae. They have adapted features, such as nostrils that can close to prevent water intake, to facilitate their marine lifestyle.
4. Crabeater seals: Crabeater seals are found in the Southern Ocean and Antarctica. They primarily feed on krill, small shrimp-like crustaceans that live in the ocean. Crabeater seals have specialized teeth that allow them to filter krill from seawater.
5. Sea otters: Sea otters are marine mammals found in coastal waters of the North Pacific Ocean. They rely on the ocean for food, shelter, and reproduction. Sea otters hunt for various marine invertebrates, such as sea urchins, clams, and crabs. They also use kelp forests as a habitat and for protection from predators.
6. Seabirds: Many seabirds, such as albatrosses, petrels, gulls, and terns, depend on the sea for food. They are adapted for flying long distances over the open ocean and have specialized beaks and feet for catching fish, squid, and other marine prey.
These are just a few examples of land animals that have a close relationship with the sea and depend on it for their survival.